如何在swift中使用苹果获得signIn认证

import AuthenticationServices

let appleIDProvider = ASAuthorizationAppleIDProvider()

let authorizationController = ASAuthorizationController(authorizationRequests: [])
authorizationController.delegate = self
authorizationController.presentationContextProvider = self

let appleIDRequest = appleIDProvider.createRequest()
appleIDRequest.requestedScopes = [.fullName, .email]

authorizationController.authorizationRequests = [appleIDRequest]

extension YourViewController: ASAuthorizationControllerDelegate {
    func authorizationController(controller: ASAuthorizationController, didCompleteWithAuthorization authorization: ASAuthorization) {
        // 处理认证成功的情况
        if let appleIDCredential = authorization.credential as? ASAuthorizationAppleIDCredential {
            // 获取用户唯一标识符
            let userIdentifier = appleIDCredential.user
            // 获取用户的身份信息
            let fullName = appleIDCredential.fullName
            let email = appleIDCredential.email
            // 处理用户信息
            // ...
        }
    }
    
    func authorizationController(controller: ASAuthorizationController, didCompleteWithError error: Error) {
        // 处理认证失败的情况
    }
}

extension YourViewController: ASAuthorizationControllerPresentationContextProviding {
    func presentationAnchor(for controller: ASAuthorizationController) -> ASPresentationAnchor {
        return self.view.window!
    }
}

authorizationController.performRequests()